There are
2,912 mi
from Waterbury, CT to Seatac, WA
That's the driving distance. It would take 2 days 3 hours to go from Waterbury, Connecticut to Seatac, Washington.
The flight distance (direct flight from Waterbury, CT to Seatac, WA) is 2,420.16 mi.
2,912 mi = 3.22 kms